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Green DDR5 RDIMM module with black chips and gold contacts

NEMIX RAM

NEMIX RAM 64GB DDR5 4800 ECC RDIMM 1.1V CL40 288-Pin 2Rx4 PowerEdge XE9640 memory upgrade

SKU CH-RVZQ-05AQ6

64 GB DDR5 ECC registered DIMM running at 4800 MT/s with CL40 latency for Dell PowerEdge XE9640 servers

  • Total capacity64 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • ChipsetMajor OEM Samsung, Micron, Hynix
  • CAS latencyCL40
  • Buffer typeRegistered
  • Rated voltage1.1 V
  • 64 GB capacity supports large-scale workloads
  • DDR5 4800 speed delivers high bandwidth
  • ECC registered design protects data integrity
  • 1 V operation reduces power draw
  • Validated for Dell PowerEdge XE9640 compatibility

Dell PowerEdge XE9640 DDR5 memory upgrade

This 64GB DDR5 4800 ECC RDIMM is built for the Dell PowerEdge XE9640 rack server. It adds a single registered module with error-correcting code to protect data integrity in mission-critical workloads. The 2Rx4 organisation and CL40 latency match the platform's qualified memory profile.

Thermals noise and power draw in normal use

Operating at 1.1V, the module runs at standard DDR5 voltage without a heat spreader. Registered buffering reduces electrical load on the server memory controller during sustained throughput. ECC circuitry adds minimal overhead while correcting single-bit errors transparently.

Build fit and system requirements

The 288-pin RDIMM installs directly into the PowerEdge XE9640 DIMM slots; no extra cabling or adapters are required. One module occupies a single slot, leaving remaining channels free for further capacity expansion. Compatibility is validated for the XE9640 platform using major OEM Samsung, Micron or Hynix chips.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $1,790.99
Pricier than about 67% of the 21,161 comparable items (median $397.99).
Total capacity 64 GB
Higher than about 60% of the 20,941 comparable items (median 32 GB).
Price per GB $27.98 per GB
Pricier than about 78% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameNEMIX RAM
Product lineDell Server/Workstation Compatible Series Memory
Model nameDell DDR5 4800 MHz ECC RDIMM Registered Server Memory
Part numberMR38400-924K1
Total capacity64 GB
Product type288-Pin DDR5 RDIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Processor
ChipsetMajor OEM Samsung, Micron, Hynix
Memory
CAS latencyCL40
ECC supportYes
Buffer typeRegistered
Heat spreaderNo
Memory rank2Rx4
Power
Rated voltage1.1 V
Compatibility
Compatible systemsDell
In the box
Included items64 GB (1 × 64 GB) DDR5 4800 MHz PC5-38400 2Rx4 1.1 V CL40 288-PIN ECC RDIMM Registered Server Memory

Questions about this item

How do I install this 288-pin DDR5 RDIMM in the PowerEdge XE9640, and which step is most often missed?

Power down the server, open the chassis, align the module notch with the slot key, press firmly until both latches click, then verify the new 64GB appears in BIOS before closing the case.

What maintenance or replacement will this ECC registered module need over its service life?

No routine maintenance is required; if a correctable error count rises or the module fails, replace it with an identical 1.1V CL40 2Rx4 part to keep ECC protection intact.

What limit appears first when this memory runs sustained workloads at 4800 MT/s?

The CAS latency of CL40 sets the timing ceiling, so latency-sensitive tasks hit that boundary before bandwidth saturates the PC5-38400 interface.

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